Method for constructing steel-structure sand-blocking dam and steel-structure sand-blocking dam

Abstract

The invention discloses a method for constructing a steel-structure sand-blocking dam and the sand-blocking dam. One to n truss structural layers are constructed by means of the self forming process of drift sand, and the self height, the self length and the like can be freely adjusted; the sand-blocking process extends to a sand facing surface, thus, the normal development use of a sand backing surface is not influenced. The steel-structure sand-blocking dam disclosed by the invention has a simple structure, a good sand-blocking effect, high construction speed and material saving and is low in cost and easy to process and implement.

Description

technical field [0001] The invention relates to a dam body in a sand control project, in particular to a construction method of a steel structure sand control dam and a steel structure sand control dam. Background technique [0002] China has a vast territory, and there are large deserts in the northwest and northeast regions. With the development of the economy and the needs of the military industry, it is necessary to build railways, roads, houses, satellite launch sites, oil fields, etc. in the desert, and the raging wind and sand If it is not blocked or fixed, it will bury railways, highways and buildings, seriously affecting personal safety and traffic safety. [0003] In the past, people used wheat straws to weave into square circles. After being arranged and combined, they were placed beside the road to block sand, and the effect was acceptable. With the structural adjustment of crops, the amount of straw available is decreasing. At present, some people try to drill...

AI Technical Summary

Problems solved by technology

[0002] China has a vast territory, and there are large deserts in the northwest and northeast regions. With the development of the economy and the needs of the military industry, it is necessary to build railways, roads, houses, satellite launch sites, oil fields, etc. in the desert, and the raging wind and sand If it is not blocked or fixed, it will bury railways, roads and buildings, seriously affecting personal safety and traffic safety

[0003] In the past, people used wheat straws to weave into square circles. After being arranged and combined, they were placed beside the road to block sand, and the effect was acceptable. With the structural adjustment of crops, the amount of straw available is decreasing

At present, some people try to drill holes in gypsum boards to form sand-blocking boards, but the effect is very poor, because the number of drilled holes is too many, and the windward strength of the gypsum boards decreases; When it is not easy to pass through the front of the board, the gypsum board will be lifted, and the wind and sand will pass under the board, so the sand blocking effect is very poor

[0004] For rivers or reservoirs located in desert areas, due to the continuous collection of deserts into rivers or reservoirs, after river water enters the reservoir, the flow rate is greatly slowed down, and a large amount of sediment brought in is deposited in the reservoir area, reducing the effective storage capacity year by year, resulting in the reduction of the flood control capacity of the reservoir , the effective service life of the reservoir is greatly shortened, or even unusable

In China, there are also many large and small and medium-sized reservoirs that are seriously insufficient in reservoir regulation and storage capacity due to sedimentation, making it very difficult to regulate during flood seasons

In view of this situation, at present, the method of excavating the silt in the reservoir area is usually used, but the operation efficiency is low, it cannot be cleaned, and it consumes a lot of manpower and material resources, and it has to be repeated every few years.

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